Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java slippers" » "python using data slippers", "python using java slippery"
"le dan zhang grippers" » "le yan zhang grippers", "le lidan zhang grippers", "le danh thang grippers", "ke dan zhang grippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("le dan zhang grippers") or ("python using java slippers"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("le dan zhang grippers") OR ("python using java slippers"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( le dan zhang grippers ) or ( python using java slippers ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("le dan zhang grippers") or ("python using java slippers"))) or ("locating bug core snippets"))*.